CN103867168A - Multi-branch small horizontal well oil production method - Google Patents

Multi-branch small horizontal well oil production method Download PDF

Info

Publication number
CN103867168A
CN103867168A CN201410117388.3A CN201410117388A CN103867168A CN 103867168 A CN103867168 A CN 103867168A CN 201410117388 A CN201410117388 A CN 201410117388A CN 103867168 A CN103867168 A CN 103867168A
Authority
CN
China
Prior art keywords
well
horizontal
horizontal well
oil
branch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410117388.3A
Other languages
Chinese (zh)
Inventor
官承荣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
XI'AN SANCAI PETROLEUM ENGINEERING SERVICE Co Ltd
Original Assignee
XI'AN SANCAI PETROLEUM ENGINEERING SERVICE Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by XI'AN SANCAI PETROLEUM ENGINEERING SERVICE Co Ltd filed Critical XI'AN SANCAI PETROLEUM ENGINEERING SERVICE Co Ltd
Priority to CN201410117388.3A priority Critical patent/CN103867168A/en
Publication of CN103867168A publication Critical patent/CN103867168A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Edible Oils And Fats (AREA)

Abstract

The invention relates to the field of petroleum, in particular to a multi-branch small horizontal well oil production method. The reasons of fast production decline and easy water appearing of a horizontal well are that the diameter phi of a long horizontal-segment well is large and is 139 mm, and stratum energy is fast declined gradually. According to the optimization design technology of a multi-branch small horizontal well, the diameter phi of an open-hole completion branch is small and is 30-50 mm, the stratum energy has a circulation process of existence, recovery and release, and the declining rate is low. An encryption adjusting well can be replaced, investment is little, effects are better, and the purpose of digging few wells with high quality is achieved. Investment cost of the method is only 1/10 that of a horizontal well technology, with oil layers of the same physical property, the yield after the method is carried out is 1/3-1/2 that of the horizontal well. Multiple horizontal branches can be drilled in one oil layer in the range of 360 degrees. According to the multi-branch small horizontal well oil production method, multi-layer mining can be performed on the same oil well, and the optimization design technology of the multi-branch small horizontal well is suitable for oil layers with the effective thickness larger than 2 m.

Description

Multiple-limb miniature water horizontal well produce oil method
Technical field
The present invention relates to oil field, relate in particular to multiple-limb miniature water horizontal well produce oil method.
Background technology
Background technology of the present invention is horizontal well drilling technology.Horizontal well is that maximum hole deviation remains on 90 ° of left and right, and in target zone, maintains the exceptional well of the net horizontal section of certain length.The shortcoming of horizontal well technology is that individual well cost of investment is huge, can only creep into towards a direction, can not carry out multiple-zone production for same a bite oil well, the economic benefit of not implementing for oil sheet, and horizontal well production is successively decreased soon, easy water breakthrough.
Summary of the invention
The object of invention: for a kind of powerful multiple-limb miniature water horizontal well produce oil method is provided, specific purposes are shown in multiple essence technique effects of concrete implementation section.
In order to reach as above object, the present invention takes following technical scheme:
Multiple-limb miniature water horizontal well produce oil method, it is characterized in that, comprise following steps, for same oil well or well site, on the horizontal plane on oil reservoir top, within the scope of 360 °, creep into multiple 100ms with interior, diameter 30-50mm horizontal bare hole well section towards different directions in the mode of angle >=15 °, well section connects oil well or well site, forms and three-dimensionally descends well pattern.
The further technical scheme of the present invention is, described horizontal plane comprises one, and is positioned at the different degree of depth of oil reservoir bottom, spacing 30-50cm.
The further technical scheme of the present invention is, described multiple horizontal bare hole well sections distribute with different angles.
The further technical scheme of the present invention is, horizontal bare hole well Duan Weiwei straight section form or segmental arc form in described same level.
Adopt as above the present invention of technical scheme, there is following beneficial effect with respect to prior art: technique of the present invention is simple, barefoot completion, cost of investment is only equivalent to horizontal well technology 1/10, the oil reservoir of identical physical property, and the output after the invention process is equivalent to 1/3-1/2 of horizontal well.The present invention can creep into multiple horizontal branch within the scope of 360 °, an oil reservoir.The present invention can carry out multiple-zone production to same a bite oil well.As long as being greater than the oil reservoir of 2m, effective pay thickiness is all suitable for multiple-limb miniature water horizontal well design optimizing, applied widely.Horizontal well production is successively decreased soon, easily the reason of water breakthrough is that stratum energy successively decreases rapidly compared with the horizontal segment well diameter of growing large (Φ 139mm); Multiple-limb miniature water horizontal well design optimizing barefoot completion branch's diameter little (Φ 30-50mm), stratum energy has the cyclic process of a survival, recovery, release, and lapse rate is low.The present invention can replace encrypted adjustment well, invests littlely, and better effects if, reaches the target of " few well-digging ", " accomplishing fluently well ".
Brief description of the drawings
In order to further illustrate the present invention, further describe below in conjunction with accompanying drawing:
Fig. 1 is multiple-limb miniature water horizontal well schematic diagram;
Fig. 2 is multiple-limb miniature water horizontal well cross-section illustration intention;
Fig. 3 is the underground well pattern schematic diagram of multiple-limb miniature water horizontal well.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described, embodiment is not construed as limiting the invention:
Technical scheme of the present invention has two kinds:
One, for a bite oil well, at the different degree of depth in oil reservoir top (spacing 30-50cm), within the scope of 360 °, creeps into multiple 100ms with interior, diameter 30-50mm horizontal bare hole well section towards different directions with different angle (>=15 °).(seeing accompanying drawing 1, accompanying drawing 2) its two, for a well site, carry out comprehensive cloth hole by above method, oil reservoir form a three-dimensional underground well pattern.(seeing accompanying drawing 3) above-mentioned two schemes, can be used as the new technology that a kind of old well is taped the latent power, and also can be used as effectively supplementing of Productivity Construction.
Core of the present invention is how to carry out differentiation design for different physical property oil reservoirs.Other embodiment shell perforation of the present invention, can only form the aperture of multiple diameter≤8mm, length≤2m.Pressure break, different pressure break scales forms the crack of 30m left and right at random, and the direction of reservoir stress direction and heterogeneous body hole is depended in crack, and the length direction in crack is all uncontrollable.
Effective control area that the present invention can set up individual well reaches 3.14 ten thousand m 2, can accurately control and creep into length and direction, can form 360 ° three-dimensionally descend well pattern.Investment of the present invention only has 1/10 of background technology.Oil well productivity of the present invention can reach 1/3-1/2 of background technology.
Figure BSA0000102367200000031
More than show and described general principle of the present invention, principal character and advantage of the present invention.Those skilled in the art should understand the present invention and not be restricted to the described embodiments; that in above-described embodiment and manual, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in claimed scope.

Claims (4)

1. multiple-limb miniature water horizontal well produce oil method, it is characterized in that, comprise following steps, for same oil well or well site, on the horizontal plane on oil reservoir top, within the scope of 360 °, creep into multiple 100ms with interior, diameter 30-50mm horizontal bare hole well section towards different directions in the mode of angle >=15 °, well section connects oil well or well site, forms and three-dimensionally descends well pattern.
2. multiple-limb miniature water horizontal well produce oil method as claimed in claim 1, is characterized in that, described horizontal plane comprises one, and is positioned at the different degree of depth of oil reservoir bottom, spacing 30-50cm.
3. multiple-limb miniature water horizontal well produce oil method as claimed in claim 1, is characterized in that, described multiple horizontal bare hole well sections distribute with different angles.
4. multiple-limb miniature water horizontal well produce oil method as claimed in claim 1, is characterized in that horizontal bare hole well Duan Weiwei straight section form or segmental arc form in described same level.
CN201410117388.3A 2014-03-27 2014-03-27 Multi-branch small horizontal well oil production method Pending CN103867168A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410117388.3A CN103867168A (en) 2014-03-27 2014-03-27 Multi-branch small horizontal well oil production method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410117388.3A CN103867168A (en) 2014-03-27 2014-03-27 Multi-branch small horizontal well oil production method

Publications (1)

Publication Number Publication Date
CN103867168A true CN103867168A (en) 2014-06-18

Family

ID=50906132

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410117388.3A Pending CN103867168A (en) 2014-03-27 2014-03-27 Multi-branch small horizontal well oil production method

Country Status (1)

Country Link
CN (1) CN103867168A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104047587A (en) * 2014-07-07 2014-09-17 西安三才石油工程服务有限公司 Method for multi-direction deep acidification of oil layer

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1729343A (en) * 2000-03-17 2006-02-01 马拉索恩石油公司 Template and system of templates for drilling and completing offset well bores
CA2253574C (en) * 1996-05-01 2006-07-18 Baker Hughes Incorporated Multi-lateral wellbore systems and methods for forming same
US7299878B2 (en) * 2003-09-24 2007-11-27 Halliburton Energy Services, Inc. High pressure multiple branch wellbore junction
CN101539008A (en) * 2009-04-14 2009-09-23 赵万福 Ground stereoscopic discharge and mining method of coal bed methane
CN103410480A (en) * 2013-08-20 2013-11-27 东营柏盛德石油科技有限公司 Unit type four-side continuous seamlessly-sectionalized radial multiple-branch three-dimensional injection-production development technology
CN103422812A (en) * 2013-08-02 2013-12-04 奥瑞安能源国际有限公司 Single-well coal bed gas multi-branch horizontal well drilling and completion method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2253574C (en) * 1996-05-01 2006-07-18 Baker Hughes Incorporated Multi-lateral wellbore systems and methods for forming same
CN1729343A (en) * 2000-03-17 2006-02-01 马拉索恩石油公司 Template and system of templates for drilling and completing offset well bores
US7299878B2 (en) * 2003-09-24 2007-11-27 Halliburton Energy Services, Inc. High pressure multiple branch wellbore junction
CN101539008A (en) * 2009-04-14 2009-09-23 赵万福 Ground stereoscopic discharge and mining method of coal bed methane
CN103422812A (en) * 2013-08-02 2013-12-04 奥瑞安能源国际有限公司 Single-well coal bed gas multi-branch horizontal well drilling and completion method
CN103410480A (en) * 2013-08-20 2013-11-27 东营柏盛德石油科技有限公司 Unit type four-side continuous seamlessly-sectionalized radial multiple-branch three-dimensional injection-production development technology

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
(美)迈克尔•R.钱伯斯主编: "《多分支井技术》", 1 November 2006, 石油工业出版社 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104047587A (en) * 2014-07-07 2014-09-17 西安三才石油工程服务有限公司 Method for multi-direction deep acidification of oil layer

Similar Documents

Publication Publication Date Title
CN103256035B (en) Fracturing fracture geological design method of horizontal well of dense gas field
CN107506840A (en) A kind of optimization method of shale gas horizontal well perforation cluster spacing
NZ719851A (en) System and method for re-fracturing multizone horizontal wellbores
MX2016003641A (en) Producing hydrocarbons.
GB2506805A (en) System and method for performing wellbore fracture operations
MX2019013507A (en) Well injection and production methods, apparatus and systems.
MX2015015011A (en) Wellbore servicing compositions and methods of making and using same.
WO2012058027A3 (en) Method and system for fracturing a formation
MX2009011686A (en) Hydrajet tool for ultra high erosive environment.
MX2012008174A (en) Treatment fluids for wetting control of multiple rock types and associated methods.
FI20115588L (en) A method for preparing a drilling plan
MX366244B (en) Optimal wellbore path planning.
GB2545576A (en) Method for hydraulic communication with target well from relief well
WO2015019112A8 (en) Methods and apparatus for well productivity
GB2531684A (en) Method for isolation of a permeable zone in a subterranean well
CN103498680A (en) Method for increasing top-coal recovery rate in primary mining period of fully-mechanized caving face
CN103982137A (en) Design method for underground hydraulic fracturing drilled hole azimuth angle of coal mine
CN103867168A (en) Multi-branch small horizontal well oil production method
RU2612060C9 (en) Method of development of carbonate shaly oil deposits
MX2011012433A (en) X-ray microscopy for characterizing hole shape and dimensions in surgical needles.
GB2530190A (en) Wellbore servicing compositions and methods of making and using same
MX2017009871A (en) Sulfonated relative permeability modifiers for reducing subterranean formation water permeability.
WO2014166467A3 (en) Method for the chisel-less formation of boreholes for deep bores and chisel-less drilling system for carrying out said method
HUE056152T2 (en) Geothermal well, method of establishing thereof and method for geothermal energy production
CN104564004A (en) Dense sandstone-shale reservoir stratum crack net fracturing development well spacing method

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20140618

WD01 Invention patent application deemed withdrawn after publication